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        Thu, 10 Nov 2016 17:08:03 -0800 (PST)
Subject: Re: [geda-user] [pcb-rnd] 6 more import/export plugins + call for
 testers
To: geda-user AT delorie DOT com
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From: "Charles Repetti (charlie94965 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Precedence: bulk

I started with a version in "C" with a multitude of stroke painted 
areas, which was easier to approach. Then I read Ucamco.com's "Gerber 
Format Application Note: Painting Considered Harmful." Not wishing to be 
"beyond contempt" I started again with C++/Boost, and had a fairly quick 
time of it using polygon inflation/deflation, union, and intersection 
C++ operators. There are only a few dozen lines of polygon code to do 
the whole job, and this solution is much more reliable. I would not wish 
to try again without Boost, or some suitable replacement library.

The gather from their mailing list that the KiCad project went through 
some pain in first using, and then abandoning Boost. I might believe 
this was because of the woeful performance of the polygon routines, but 
since KiCad doesn't do interactive painting of polygons, I'm not sure 
this was their complaint. Perhaps it was simply a dislike of the 
library's overreaching architecture, which I could also understand.


On 11/10/16 2:08 PM, Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) 
[via geda-user AT delorie DOT com] wrote:
> Are there any hard to implement algorithms with these polygon perimeters in Stipple?
>
> On Thu, 10 Nov 2016 12:11:51 -0800
> "Charles Repetti (charlie94965 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com> wrote:
>
>> Oops, I just took a look at that and since I use the Boost library
>> (www.boost.org) to calculate all those polygon perimeters in Stipple
>> (http://www.sandpiper-inc.com/stipple/html/), I depend on C++.
>>
>>
>> On 11/10/16 11:18 AM, gedau AT igor2 DOT repo DOT hu wrote:
>>> Hello Charles,
>>>
>>> On Thu, 10 Nov 2016, Charles Repetti (charlie94965 AT gmail DOT com) [via
>>> geda-user AT delorie DOT com] wrote:
>>>
>>>> Igor2
>>>>
>>>> I contributed the Stipple plugin, which I find indispensable for
>>>> flexible
>>>> circuit boards and capacitive touch sensors (features not found in
>>>> KiCad).
>>>> If I can find time for a test of your branch with my plugin I'll let you
>>>> know I've verified it.
>>> Thank you!
>>>
>>> I found your plugin while listing all available plugins. Unfortunately
>>> your plugin is written in C++ while in pcb-rnd we have a C-only policy
>>> (C89 for most code, especially feature plugins). If you decide to port
>>> your plugin to C, I'd be happy to include it in pcb-rnd.
>>>
>>> Regards,
>>>
>>> Igor2